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Tip Enhanced Raman Spectroscopy (TERS)

Tip Enhanced Raman Spectroscopy (TERS) is a technique that uses the Raman effect to provide chemical identification.  The sample is illuminated with a monochromatic laser source, and the backscattered radiation is dispersed to obtain the spectral information.  TERS uses the sPM tip as a near field antenna, thus providing much higher spatial resolution (10 nm).  TERS expands the application of AFM beyond topographical imaging, and couples it with true nanoscale spectral information.
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